Reverse connection prevention circuit for automobile motor power supply

The utility model discloses an automobile motor power supply anti-reverse connection circuit comprising a common source NMOS reverse series module, a driving circuit used for driving the common source NMOS reverse series module, and a load, a first transistor MOS1 and a second transistor MOS2 share the same source, the drain electrode of the MOS1 is connected with the positive electrode of a power supply, the drain electrode of the MOS2 is connected with the first end of the load, and the first end of the load is connected with the second end of the load. The second end of the load is connected with the negative electrode of the power supply, and the grid electrode of the first transistor MOS1 and the grid electrode of the second transistor MOS2 are connected and serve as the input end of the common-source NMOS reverse series module to be connected with the drive circuit. The reverse connection prevention circuit for the automobile motor power supply has the advantages of simple structure, high voltage resist